
the \(\Delta \)  term, proportional to \(G^2\hbar m/b^3\) , is not present in [1]}, [2]},

There is a new term proportional to \(\log \left(\frac{\bar{\mu }^2}{4E^2}\right)\) , which do not appear in previous computations.

The term proportional to \(\log (b/2b_0)\)  presents a different sign with respect to the same one in [1]}, [2]}, this point needs to be further clarified in future works.

